How to enable smtp in digitalocean on port 465

I have created 10s of droplet and destroy them again and again. uploading my script and do again. for couple of days. Upset and angry without finding a solution. I need a help please:

When I run the command for ports I got these:

OpenSSH ALLOW Anywhere
Apache Full ALLOW Anywhere
443/tcp ALLOW Anywhere
25 ALLOW Anywhere
80/tcp ALLOW Anywhere
80 ALLOW Anywhere
443 ALLOW Anywhere
587 ALLOW Anywhere
465 ALLOW Anywhere
993 ALLOW Anywhere
110 ALLOW Anywhere
995 ALLOW Anywhere
OpenSSH (v6) ALLOW Anywhere (v6)
Apache Full (v6) ALLOW Anywhere (v6)
443/tcp (v6) ALLOW Anywhere (v6)
25 (v6) ALLOW Anywhere (v6)
80/tcp (v6) ALLOW Anywhere (v6)
80 (v6) ALLOW Anywhere (v6)
443 (v6) ALLOW Anywhere (v6)
587 (v6) ALLOW Anywhere (v6)
465 (v6) ALLOW Anywhere (v6)
993 (v6) ALLOW Anywhere (v6)
110 (v6) ALLOW Anywhere (v6)
995 (v6) ALLOW Anywhere (v6)

465 ALLOW OUT Anywhere
587 ALLOW OUT Anywhere
25 ALLOW OUT Anywhere
465 (v6) ALLOW OUT Anywhere (v6)
587 (v6) ALLOW OUT Anywhere (v6)
25 (v6) ALLOW OUT Anywhere (v6)

When I run the command

code

nmap -p 25,465,587 (My ip address)

I got this reply

PORT STATE SERVICE
25/tcp closed smtp
465/tcp closed smtps
587/tcp closed submission

Before it was given me like this

PORT    STATE    SERVICE
25/tcp  closed   smtp
465/tcp filtered smtps
587/tcp filtered submission

And the reason behind that is the following of these two tutorials.

UFW Essentials: Common Firewall Rules and Commands https://www.digitalocean.com/community/tutorials/ufw-essentials-common-firewall-rules-and-commands#service-mail

Iptables Essentials: Common Firewall Rules and Commands https://www.digitalocean.com/community/tutorials/iptables-essentials-common-firewall-rules-and-commands#service-mail